Timber-treating apparatus.



J. H. GROW UMBER TREATING APPARATUS.

APPLICATION FILED was. 1914.

1,164,938. Patented Dec. 21,1915.

Parana I carton.

JOHN H. GROW, OF MILWAUKEE, WISCONSIN, ASSIGNOB, TO.ALLIS-CHAL1VIERS MANUFACTURING COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF DELAWARE.

" Application filed August 5,

To all whom it may concern:

Be'it known that 1, JOHN H. Grow, a

' citizen of the United States, residing at Milwaukee" in thc county of Milwaukee and State of Wisconsin, have invented a certain new and useful Improvement in Timber- Treating Apoaratusbt which the follow-, ing is a specification. v

This invention relates to improvements 1n the construction of timber treating apparatus and more specifically to improvements in the construction of means for eflectively retaining a timber treating car upon rails which are mounted within the treating retort.

An object of the invention is to provide a rail for timber treating retorts which is simple in construction, efficient in operation, and which will automatically prevent the timber treating car from leaving its course within the retort.

One of the more specific objects is to provide a rail having aZ-shaped cross section, which may be formed of standard Z bars, thus permitting the reduction of the cost of construction to a minimum.

Another object is to provide means for positively and automatically preventing the car wheels from" leaving the rail, due to floating of the car and its contents at times when the treating'liquid is beingadmitted to the retort. Y

Still another object is to provide means for properly bracing the car wheel guiding and retaining means and for protecting the steam piping at the portion of the retort between the rails.

A further object is to provide means for preventing spreading of'the rails, the devices for accomplishing this purpose also serving "to bracethe guide plates.

A clear conception of an embodiment of the invention may be had by referring to the drawing accompanying and forming a part of this specification in which like reference characters designate similar parts.

The single figure of the drawing discloses a transverse vertical section through a timber treating retort, showing an empty timber treating car in place therein.

The cylinder or retort 1 is of customary construction, being of considerable length and provided with the usual heating coils at the lower portion thereof. Brackets 4 are secured to the lower portion of the re- TIMBER-TREATING APPARATUS. I

1 Specification of Letters Patent. Patenta Dec- 21 191,51

1914. Serial No. 855,345.,

tort l by means of rivets or bolts passing through the end portions of the brackets and through holes in the retort wall. A pair of rails 2 which have Z-shaped cross sections, being formed of standard 2 bars, are mounted upon the brackets 4 and extend parallel to each other throughout the entire length of the retort 1. Each of the rails 2 has a vertical flange extending downwardly and coacting with the brackets 4 adjacent vertical portions of the brackets. The portions of the rails 2 adjacent the side portions the retort 1, are provided, with vertical upwardly extending flanges, these flanges being connected with the vertical downwardlyextending flanges of the corresponding rails by means of substantially horizontal rail portions.

Guide plates 3 are secured to the downwardly extending flanges of the rails 2 by means of rivets or bolts and are spaced from the adjacent rails by means of spacing bushings which surround the fastening bolts. p

The upper extremities of the guide plates 3 are connected and stiffened by means of perforated plates 5 which also serve to protect the heating coils located directly below. The plates 3, 5, bushings 6, and connecting bolts, form means directly connecting the Z rails 2 for preventing spreading of these rails. r

The car '7 is provided with flanged car wheels 8 which rest upon the horizontal portions-of the rails 2. With the car 7 in position upon the rails, the flanges of the wheels 8 extend into the gap formed between the rails andthe adjacent guide plates 3, by the'use of the spacing bushing 6. It car wheels 8 without guiding flanges are used, the use of bushing 6 is unnecessary and the plates 3 may be riveted directly to'the adjacent rail flanges.

In order to permit treatment of a maximum amount oftimber at one time, the sides of the treating car and the bails connecting these sides, are spread out so as to allow only the necessary clearance for passage of the car 7 through the retort 1. As the retort l is usually filled with a treating liquid after a car load of timber has been placed therein, this liquid during the filling operation, and especially when the car is loaded with buoyant material, tends to raise the car 7 from the rails '2. By providing the guide plates 3 adjacent the inner sides of the car Wheels '8, the car 7 is free to rise, but displacementof the wheels 8 from the tracks 2 of theguide, plates 3 should become dislodged or broken, the upwardly extending vertical flanges of the rails 2 adjacent the defective guide plate 3, will positively prevent excessive side displacement of the car 7Q Theformation of the rails f standard Z barsreduces the cost of construction of the rail toa .minimum and permits ready repairing andvv renewal of a defective rail section. The flanges of the Z-rail furthermoreadd stiffness to the same and prevent bending of'the rail portions between the brackets, 4. j

. The perforated plates 5 which connect the upper extremities of the guide plates 3, serve as a stiffener for the guide plates and also serve to protect the heating coils located directly thereunder. These plates 5, together with the plates 3, bushings 6 and connecting bolts, also serve to prevent spreading of the rails 2. The brackets may be made of steel or othersuitable material and may generally be effectively secured to the retort 1 so as to prevent-spreading of the rails, by

means of rivets, but the direct connection through the plates 3, 5, doubly prevents such spreading. a

'Each' rail 2, -together with its adjacent plate '3, forms a continuous recess within whichthe adjacent wheel 8 may travel and from which the wheel cannotbecome dis-' located due to rising of the car. WVhile in the specific embodiment disclosed, the car has two wheels mounted on each axle, it

should be understood that the invention is also applicable to mono-rail retorts and to thosevhaving more than two rails.

It should be understood that is not de 7 It is claimed and desired to secure by Let ters Patent,-

' In combination, a retort, a rail vmounted Within said retort, said rail comprising a. palr of oppositely extending vertical flanges connected by a horizontal V-porti'on, and

means secured to one of said flanges and cooperating with said rail to form a" wheel guiding vrecess extending longitudinally of said rail. j 1 i 2. In combination, a retort, arail mounted within said retort, said rail'comprising .a pair of oppositely extending flanges connected by a portion extending transversely of said lflanges,'and means secured to one of said flanges and cotiperatingwith said rail to form a continuous wheelguiding recess extending longitudinally of said'rail.

3. .In combination, a retort, a plurality of rails mounted within and supported by the wall of said retort, and means directly connecting said rails for preventing spreading thereof, said means being independent of p the wall of said retort.

4. In combination, a retort, a plurality of rallsmounted Within and connected by the wall of said retort, a guide plate secured to each of said rails, and ,means directly coir' necting said guide plates, said means being to both stiffen said plates and to prevent spreading of said rails. r j r 5. In combination, a retort, a rail mounted within said retort and having a, down wardly extending flange, a'guide'plate sup,-

.ported entirely from said rail,'and means for spacing said guide plate fromsaid flange. In testimony whereof, thesignature of the 'inventor is aflixedhereto in the presence of Copies of this' patent may be obtained for five cents each, by addressingthe Commissioner of Ifatents Washington, 13. 0, i r 1 independent of said retortwall andxserving 

